Wall structure for a tuner cartridge



FIG. 1 is a perspective view of the wall structure for a toner cartridge, the toner cartridge other than the wall structure being shown in broken lines;

FIG. 2 is a front view of the wall structure for a toner cartridge;

FIG. 3 is a rear view of the wall structure for a toner cartridge;

FIG. 4 is a left side view of the wall structure for a toner cartridge; and,

FIG. 5 is a bottom view of the wall structure for a toner cartridge. 

The ornamental design for a wall structure for a toner cartridge, as shown and described. 